Cramer said unless they're worried about the energy situation in Germany or trading the Russian ruble, investors should treat the market's downward swing as they would any other selloff.

"This is where you would pick," Cramer said on "Squawk on the Street." "You're getting a chance. We had a big selloff on Friday and we kind of rallied in the last half-hour. If we can get those prices we did at 3:30 [p.m. on Friday] then count me in."

The question investors should ask, Cramer said, is how this international incident compares with past global events that were said to have weighed heavily on markets. After that, it's about finding the best value. Cramer sees upside in energy stocks, and momentum-driven companies such as Salesforce.com, he said.

"I hate up openings on Mondays, and I don't mind down openings," Cramer said. "Be careful what you do buy."

—By CNBC's Jeff Morganteen. Follow him on Twitter at @jmorganteen and get the latest stories from "Squawk on the Street."